- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 27/28 - Systems using multi-frequency codes with simultaneous transmission of different frequencies each representing one code element
Patent holdings for IPC class H04L 27/28
Total number of patents in this class: 1288
10-year publication summary
|
72
|
50
|
48
|
36
|
39
|
25
|
24
|
22
|
6
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 143303 |
101 |
| Qualcomm Incorporated | 84084 |
90 |
| LG Electronics Inc. | 72208 |
65 |
| Huawei Technologies Co., Ltd. | 110249 |
58 |
| Ericsson | 21510 |
45 |
| Marvell Asia PTE, Ltd. | 6561 |
40 |
| Cavium International | 5094 |
39 |
| Apple Inc. | 54252 |
35 |
| Texas Instruments Incorporated | 19481 |
24 |
| Intel Corporation | 46643 |
23 |
| Electronics and Telecommunications Research Institute | 9277 |
23 |
| Sun Patent Trust | 1989 |
20 |
| Avago Technologies International Sales Pte. Limited | 8857 |
20 |
| Google Technology Holdings LLC | 2355 |
18 |
| Marvell International Ltd. | 1183 |
18 |
| NEC Corporation | 35219 |
13 |
| Sharp Corporation | 10286 |
13 |
| Comcast Cable Communications, LLC | 4571 |
12 |
| NXP USA, Inc. | 4264 |
12 |
| Interdigital Patent Holdings, Inc. | 5228 |
11 |
| Other owners | 608 |